Home / 791,344.20-1,187,016.30-230,435.40

Finding the Fourth Proportional to 791,344.20, 1,187,016.30 and 230,435.40

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Solution

The fourth proportional to 791,344.20, 1,187,016.30 and 230,435.40 is: 345,653.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,344.20 : 1,187,016.30 = 230,435.40 : x
  2. Step 2: Convert to fraction form
    791,344.20/1,187,016.30 = 230,435.40/x
  3. Step 3: Cross multiply
    791,344.20x = 1,187,016.30 × 230,435.40
  4. Step 4: Simplify right side
    791,344.20x = 273,530,575,897.02
  5. Step 5: Solve for x
    x = 273,530,575,897.02/791,344.20
  6. Step 6: Final answer
    x = 345,653.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.